Phenotype and management of chronic obstructive pulmonary disease patients in general population in China: a nationally cross-sectional study

NPJ Prim Care Respir Med. 2021 Jun 1;31(1):32. doi: 10.1038/s41533-021-00243-x.

Abstract

This study aims to investigate the characteristics of the phenotype and management of chronic obstructive pulmonary disease (COPD) patients in the general population in China. We analyzed spirometry-confirmed COPD patients who were identified from a population-based, nationally representative sample in China. All participants were measured with airflow limitation severity based on post-bronchodilator FEV1 percent predicted, bronchodilator responsiveness, exacerbation history, and respiratory symptoms. Among a total of 9134 COPD patients, 90.3% were non-exacerbators, 2.9% were frequent exacerbators without chronic bronchitis, 2.0% were frequent exacerbators with chronic bronchitis, and 4.8% were asthma-COPD overlap. Less than 5% of non-exacerbators ever had pulmonary function testing performed. The utilization rate of inhaled medication in non-exacerbators, exacerbators without chronic bronchitis, exacerbators with chronic bronchitis, and asthma-COPD overlap was 1.4, 23.5, 29.5, and 19.4%, respectively. A comprehensive strategy for the management of COPD patients based on phenotype in primary care is urgently needed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Asthma* / drug therapy
  • Asthma* / epidemiology
  • Cross-Sectional Studies
  • Disease Progression
  • Humans
  • Phenotype
  • Pulmonary Disease, Chronic Obstructive* / drug therapy
  • Pulmonary Disease, Chronic Obstructive* / epidemiology